Printing-machine



12 Sheets-Sheet 1.

(No Model.)

G. R. CLARKE.

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(NovMoae'Jl.) 12 sheetssheet 2. G. R. ,CLARKE` PRINTING MACHINE.

N0. 532,193. Patented Jan. 8, 1895.

(No Model) 12 sheets-sheet s.

' G. B.. CLARKE..

PRINTING?` MACHINE. N0. 532,193. Y u Pa'tentedJan. 8, 1895.

zasweaw l Y n @M Vy C? M www l Y (No Model.) 12 sheets-sheet 4.

G. R. CLARKE. PRINTING MACHINE.

No. 532,193. Patented Jan. 8, 1895.

12 Sheets-Sheet 5.

(No Mode1.)'

G. R. CLARKE. PRINTING MACHINE.

No. 532,193. Patented Jan. 8.1895.

(No Model.) 12 sheets-sheet 6.

G. R. CLARKE. PRINTING MACHINE.

N0. 532,193. Patented Jan. 8, 1895.

(No- Model.)

12 Sheets-Sheet 7'. G. R. CLARKE,

5. ou 8 1 001 .n. na J d e .t n nu am mP. H C A M G N I mi N I R P QW 9.In 2 3 5 nw N "mum HT! n||||| 12 Sheets-Sheet 8.

(No Model.)

G'. RCLRKE.

' PRINTING MACHINE.

Patented Jan.

No 5 3 2, l 9 3 ffy-15b mnsesw l co, vnu-wwwa, @Ammann o c (No Model.)

12 Sheets-Sheet 10.

G. RK. CLARKE.. PRINTING MACHINE,

` Pat med Jan. 8, 1895.

(No'Model.) 12 sheets-sheet A11.

G. R. CLARKE.

PRINTING MACHINE. No. 532,193. Patented Ja.11. 8, 1895.

wzessesx- (Nomodn f 12 Sheets-Sheet 12 G. R.`GLARKB. PRINTING MACHINE',

NO. 532,193. Y Patented Jan. 8, 1895.

I Mli/naires.'

UNITED STATES PATENT OFFICE.

GEORGE R. CLARKE, OF MONTELL, TEXAS.

PRINTING-MACHINE.

SPECIFICATION forming part of Lettersratent No. 532,193, dated Januarye, 1895. Application tiled March 22, 1894. Serial No. 504,584 (Nomodel.)

To all whom, t mm1/y concern:

Be it known that I, GEORGE R. CLARKE, a citizen of the UnitedStates,residing at Montell, in the county of Uvalde and State of Texas, haveinvented certain new and useful Improvements in Printing-Machines,ofwhich the following is a specification.

This invention relates to a self-feeding and .self-delivering printingmachine which prints not rotate, being locked to its carrying-frame withits flattened face down or next the type. On its forward, printingmovement the cylinder rolls over the form, the sheet of paper beinginterposed and receiving the impression. When the gripper arrives at theupper side of the cylinder (the latter rolling forward) a vibratingdelivery gripper moves backward,and interposing its open jaws betweenthe closed jaws of the cylinder gripper, seizes the edge of the printedsheet at the moment the latter gripper opens its jaws and releases thesheet. The cylinder continues to rotate forward and the delivery grippermoves forward at a speed j corresponding with -the peripheral speed ofthe cylinder, thus carrying the printed sheet forwardand depositing iton an upper, delivery platform. After the cylinder has completed onerotation, it is again locked `to its frame, the gripper thereon isopened, and the cylinder moves alittle farther forward so that its jawsmay take under the uplifted edge of the segregated, topmost sheet on thepile on the sheet-platform. This sheet is then seized and borne back asbefore described. The cylinder is mounted on an arbor provided withtrack wheels which run or roll on track-rails on the type-bed, whichrails are, bypreference, made adjustable so as to regulate theimpression. These cylinder wheels roll back and forth, and to compelthem to roll, a toothed side of the machine.

wheel is fixed on the cylinder arbor and arranged to gear with a racksecured to the typebed or the frame. The cylinder is drawn down bysprings to provide pressure for printing, and suitable in king mechanismis provided to ink the form of type.

The mechanism for locking the cylinder alternately to its frame (toprevent its rotation) and to its wheels (to compel it to rotate), iscarried by the cylinder and its wheels, as is also the gripper-operatingmechanism. These mechanisms are actuated "oy cams mounted on themachine. In case, for any reason, the cylinder gripper does not seize asheet, the cylinder remains locked against rotation and does not rollover the inked types. This prevents the inking of the cloth or paperwhich covers the cylinder.

The annexed drawings illustrate an embodiment of the invention.

Figure 1, is an elevation of the left-hand Fig. 2 is a front elevation.Fig. 3 is a plan, and Fig. isavertical section on line A A, These aregeneral views. Fig. l is a detail view showing the cylinder taking asheet. Figs. 2a and 2b are sectional detail views otl the air-exhaustingdevice of the feeder. Figs. 4a and 4b are detail lviews showing theoperation of unlocking the cylinder from its frame. Figs. 5, 6 and 7aredetail views illustrating the feeding mechanism for the blank sheets.Figs. 8, 9, 10 andll are detail views of the delivery-gripper. Figs. l2and 13 are, respectively, a side elevation and longitudinal section ofthe cylinder, detached, and Figs. 13a and 13b are detail views of thesheet-guard. Figs. 14 to 22 General Description.

l is the frame of the machine, in general. 2 is the driving shaft. 3 arethe tight-andloose driving pulleys on said shaft. 4 is a pinion on theshaft 2, gearing with a spur wheel, 5, on a cam-shaft, 6. This cam-shaftrotates in the direction indicated by arrows 6a.

7 is the platform for the pile of blank sheets,

and 7 is the platform for the pile of printed sheets.

8 is the type-bed, which supports the form of type.

9 is the impression cylinder and its attachments.

10 is the ink-distributing platform, and 11 are the inking rollers. Thisinking apparatus may be of any kind.

The arbor, 9, of the cylinder 9, has bearings in blocks, 9, mounted inguides in the upper ends of two arms, l2, on a rock-shaft,` 13. Thesearms are coupled by connecting-rods, 14, to pins in crank-disks, 15, onthe camshaft 6. The inking rollers are coupled by links, 11, to the arms12.

Feeding llecham'sm.

Extending across the platform 7, is the hollow suction-roller, 16 (seeFig. 6), which has in it a row of holes, 16a. This roller Y is mountedrotatively in two vibrating arms, 17 and 17a, on a rock-shaft, 17X. Theroller 16, has a bearing at one end on a hollowjournal, 17h, on the arm17, and this hollow journal communicates with a tube, 18, which extendsdown along the arm 17, to the shaft, 17X, and connects with a bore, 17,in same (see Figs. 2f and 2b). The air-exhauster comprises a cylinder,19, fixed to shaft 17X, by a sleeve, 19X, where there is a hole, 171. Apiston, 19, in the cylinder is coupled by a rod, 19h, to the arm of alever, 2O (Fig. 4), fulcrumed at 20X. This lever has two arms, 20,adapted to be acted on alternately 'by a stud, 2l, in a cam, 22. Thisstud rocks the lever, moves the piston and alternately exhausts the airfrom the suction-roller 16. This roller 16, is provided at one end (Fig.6) with a pinion, 16, which gears with a rack, 16d, pivoted at 16e (Fig.7). The rack is supported on a roller-stud, 16f,.in the arm 17a. Theplatform 7, is kept pressed up to the suction-roller 16, with a yieldingpressure by a device seen in Fig. 4. A weight, 23, is secured to alever, 23a, fulcrumed on a rod, 24, its longer arm taking under thefront part of the platform 7. Crossing the lever 23a, is a lever, 23h,which is pivoted to lever 23a; this lever 23h, which is pivoted to theplatform 7, and has a rollerstud at its lower end engaging aguide-track, 25, on vthe frame. There shouldbe two of these yieldingsupports, one at each side of the platform.

The arms 17 and 172, which carry the suction-roller 16, vibrate inunison with the arms, 79, which carry the delivery gripper (to behereinafter described), being coupled thereto by links, 80. l/Vhen thesuction-roller 16, is over the rear edge -of the pile of blank sheets onthe platform 7, the holes 16a, will be down on the topmost sheet. Theair is now exhausted from the roller and it starts to roll forward (tothe right in Figs. 1, 2, and thus lifting the edge of this sheet. Asegregating blade, 26, coupled to the roller-arms by links, 28, andvibrating with the roller,

now advances under the uplifted edge of the sheet and the vacuum beingthen broken the sheet falls on the elevated back of the blade 26. Thisback is transversely grooved, as seen in Fig. 3 to allow the teeth ofthe cylinder gripper to pass under the sheet, and at this moment thenon-rotating cylinder, with the gripper open, advances to the positionseen in Fig. 1a. The gripper closes on the sheet, and the cylinder movesback.

To permit the cylinder todraw out the seized sheet from under thesuction roller 16, the blade 26, presses down a little the platform 7,and the pile of sheets thereon. This is effected by the followingdescribed means: The' blade 26, is secured to arms, 26a, and these armsare coupled at their lower ends to arms, 26h, on a rock-shaft, 27,mounted in the arms 17 and 17a. This shaft has an arm, 27, which carriesa stud that bears'on the pe riphery of the cam 22 (see Fig. 4),beforementioned. This cam is so formed and set as to actuate the blade26,to the proper extent and at the proper time. When the blade drawsback it just frees the pile of sheets.

Cylinder and its Locking llfecham'sm.

These devices will be described with especial reference to Figs. 12 to22a. The arbor 9b, of the impression cylinder has rotative bearings inblocks 9a, in guides in the upper ends of the arms 12, and these blocksare secured to springs, 12a (Fig. 4), in the arms. These springs havetension-regulating nuts, 12b. On the arbor 9b, are Xed the cylinderwheels, 9C and 96C, which run on'track1ails, S, on the type-bed. Thetoothed wheel,9, on the arbor gears with a r-ack, Sb, on the typebed.The cylinder-frame comprises tw'o arms, 9e, on the bloc-ks 9, and a rodor bar, 9i', connecting said arms. The cylinder 9, may be locked to thisframe against rotation, or it may be locked to one of its wheels tocompel rotation. It is always locked to one or the other of these parts.The mechanism for locking the cylinder is best seen in Figs. 14 to 17,inclusive.

9g is a cap-plate on the cylinder and 9h is a box'plate secured to plate9S. Fig. 16 shows the inner face of plate 9h, and Fig. 17 its outerface. Figs. 14to15a show the wheel 9c, adjacent to the box-plate 9h.Fig. 14 shows the outer face, and Fig. 15 the inner face of said wheel.

In the box-plate 9h (Fig. 16), is mounted a double bolt, 30, the tip,3l, of which isadapted to enter a socket, 32 (see Fig. 4a), in thecylinder frame, while at its'other end it has a laterally projectingstud, 33, which projects through a slot in the plate 9h, and may engagea keeper-notch, 46, in a plate, 47, on the inner face of the wheel 9,(Figs. 15 and 15a.) A spring, 34, bears on the stud 33, and tends towithdraw the tip 3l,from its socket 32. When the bolt 30, is moved tolock the cylinder to its frame, the bolt is held fast by a toggle of ICOIIO

two links, 35 and 36, having a slotted con'- A nection at the knuckle.

broken outwardly by a curved cam-bar,

. on the wheel 9c.

37, pivoted on the plate and its curved face bearing on a stud, 38, onthe toggle-link 35.

The cam-bar is upheld by a spring, 39, and it is actuated by thefollowing described mechanism: An arm, 40, is pivoted to the cam-bar 37,and said arm has a stud,41, which projects through a slot in plate 9h,toward the wheel 9c. In this wheel is mounted a rockshaft, 42, on theouter end of which is a crank, 44, and on its inner end is fixed an arm,43. Seen in Fig. 15. As the wheel'rolls on its track the crank 44,strikes a cam, 45 (see Figs, 4 and 4b), the shaft 42, is rocked therebyand the arm 43, strikes the stud 41, and through it, actuates the toggleand sets free the bolt 30. Then the spring shoots the bolt back and thestud 33, enters the notch, 46, and locks the cylinder to the wheel 9C.To shift the bolt 30, in the opposite direction so as to lock thecylinder to its frame and unlock it from wheel 9C, the followingdescribed mechanism is providedl Mounted on the inner face of wheel 9,is a slide, 48, the outer end of which plays in the keeper-plate, 47,back of notch 46, and has a shoulder, 49 (Fig. 15a). On the slide 48, isa stud, 50, which plays in a slot in wheel 9, and on the outer face ofsaid wheel is pivoted an elbow-lever, 51, one arm of which is coupledtothe stud 50 (Fig. 15), and the othercavrries a roller, 52. Thisroller, stri-kes a ca m, 53, on the frame when the cylinder has made acomplete rotation forward .and thus drives the slide 48, inward-radiallyThe shoulder 49, on the slide takes behind the stud 33, and shifts thebolt 30, until its tip 31, enters the socket on the frame, the togglethen straightening out and holding the bolt 30, in this position asbefore described. Adjacent to the tip 3l, of the bolt is a notch, 31h,in the edge of the plate .on the cylinder, and on the bar 9f,isl

mounted a spring pawl, 31|, to engage the notch in the cylinderandprevent any backward rotation of the cylinder beyond this point. Fig.4 shows this pawl engaged.

The devices for opening and closing the cylinder gripper are at that endof the cylinder where wheel 9m, is situated. The gripper and itsoperative mechanism are best illustrated in Figs. 12, 13, 19, 20, 21 and22. In Fig. 2O the mechanism within the middle part of the cylinder isseen as if viewed from the left in Fig. 19.

The cylinder 9, is hollow and has a ilattened and recessed face whereinis mounted a rockshaft, 54, carrying the spaced gripper teeth, 55, whichclose on seats, 56, at the margin of the recess. The gripper is held.closed by spring pressure through mechanism seen in Figs. 19 and 20. Onthe gripper-shaft 54, is a slotted arm, 57, and on a bar, 5S, mounted inthe end-plates of the cylinder, is arocking arm, 59, coupled bya slotand stud, 60, to the arm 57. On thel bar. 58, is a coil spring, 61,

. attached at its respective ends to the bar and The knuckle is i otedan elbow-lever, 63, the shorter arm of which is couplcd to the crank 62,bya link, 64. On the longer arm of lever 63, is aroller, When thisroller is pressed inward radially by a cam 89 on the frame, the gripperis opened. This lever-and-crank device effects of shaft 54, and on thesaid cap-plate is piv-" the opening of the gripper by an easy move- Yment.

When the cylinder 9, has rolled forward -until the gripper is at thedelivery point, as

seen in dotted lines in Fig. 1, the gripper is opened by the roller 65,impinging on a cam; 89, placed in theproper position on vsomey part ofthe frame;and when the cylinder has completed its rotation said roller65,in1pinges on a shifting-cam, 66. Seen best in Figs. land 5. This camis first elevated so as to act on the gripper mechanism, and thenloweredy so as not to open the gripper when the cylinder 9, moves back.The cam 66, is carried by a swinging arm, 67, and is upheld by a wedge,28a, on the link 28. As the suction-roller 16, moves back this wedgemoves under cam 66, and elevates it into operative position, it beingheld in this position by a toggle composed of links, 68 and 69, thelatter pivoted at 1X. When the toggle is straightened, a prolongatio-n,68X, on link 68, impinges on a stud, 69a, on link 69. The straighteningof the toggle throws an arm, 69X, on link 69, in the path of a stud, 15a(Fig.,1), in the crank-disk 15, and as this disk rotates the studstrikes said arm and breaks the knuckle of the toggle, letting the cam66, and its arm fall by gravity as far as the wedge 28a, will permit. f

It may be said here that the cam 45 (Figs. 4a and 4b), will be depressedbythe crank 44, when the cylinder passes said cam in moving back and thecam does not act then to unlock the cylinder. It acts at the beginningof the forward movement of the cylinder.

The Sheet Guard.

To prevent the blank sheet from being drawn over the inked faces of thetype, a

IOO

VIto

sheet-guard is employed, which is best seen in Figs. 4, 12, 13a and 13b.

On the bar or rod, 9i, are rocking arms, 9j, which are connected attheir ends by a transverse rod, 9k. which hold the arms normally as seenin Fig. 13a.A To the rod 9k, are secured` tapes, 9, which pass over aroller, Se, at the front edge of the type-bed 8, and have attached totheir ends (Fig. 4) light weights, 9, to keep them strained. When thecylinder nears the forward end of its travel, the rod 9k, encounters Onthe bar 9f, are springs, 9m,

i 55eme a properly situated curved deflector, 8, onthe frame and isdepressed or swung down out of the way of the gripper and the sheet tobe seized, and when the cylinder moves back, this rod rises again andtakes under the sheet, it and the tapes supporting the sheet slightlyabove the form.

Device to Prevent the Cylinder from Roll/ng Over the Type when, no Sheetis Interpcsed.

This device, which is best illustrated in Figs. 13 to 20, inclusive,prevents the unlocking of the cylinder from its frame at the beginningof its forward movement unless a sheet is held in the cylinder gripper.

7l is a pin (Figs. 1S, 19 and 20) which plays through a hole in a toothor jaw of the gripper and its seat 56. This pin is coupled to an arm,72, fixed on a rock-shaft, 73, mounted in the end-plates of thecylinder. Figs. 16 and 18fL show the end plate, 9g, next to plate Theshaft 73,projects through plate 9g,

j and has a crank, 74, the pin, 74a, of which engages a slot in abranch, 40@L (see Fig. 16), on the arm 40, when the parts are assembled.

It will be understood that the arm 40,-of which the slotted branch 40aforms a substantially integral part-is pivoted loosely to the bar 37,and the spring 39 does not affect its operation.

When a sheet of paper is inserted in the open gripper and the teethclose thereon, the pin 71, will not be protruded through the grippertooth by reason of the interposed sheet, and hence, through the mediumof the arm 72, rock-shaft 73, crank 74, pin 74u, and slotted branch40a,the stud 4l, will be held in the path of the head on the arm 43, andconsequently the unlocking of the cylinder will be effected; but it'there is no sheet in the gripper, the pin 7l, will protrude into orthrough the hole in the gripper-jaw, and this will allow the stud 4l, tomove laterally out of the path of the head on arm 43, which will notthen impinge on said stud and the unlocking of the cylinder will not beeffected. -In order to withdraw the pin 71,when the gripper opens toreceive a sheet,the construction seen in Figs. 19 and 2O is employed. Onarm 72, is a branch forming a cam, 72a, which stands in such relation tothe slotted arm 57, on the grip- Apershaft that the pin 71, may movefreely when the gripper is closed, as in Fig. 19, but when it isopened,arm 57, strikes cam 72a, and draws the back pin 71.

It will be noted that when the sheet is being seized by the grippers thepin 71 will be in an upright position, its tip downward, and that ittends to fall by gravity, thus acting to rock the shaft 73, and swingthe arm 40.

It may be said here that the cylinder will have an ordinary covering, 75(Fig. 19), secured to the cylinder at 75X, and drawn smooth and tight bya rotative straining bar 76.

Delivery Gripper for the Sheets.

This device is best illustrated in Figs. 1, 2, 3, 4, 8,9,10 and 11.

y suction-roller 16.

77 is a rock-shaft in the frame (Figs. 2 and 4), on which is an arm 77X,and this arm is coupled to a cross-bar, 77C, in the frame by a pair oflinks, 77", coupled together at 77. At 77a is a stud which projectslaterally from the pivot-point into a cam-groove in the face of thecam-disk, 78, on the cam-shaft 6. Rotation of shaft 6 rocks the shaft77. On the outer ends of shaft 67, are long arms, 79, which projectabove the delivery platform 7X, and are tied together by a rod, 79X.

To the arm 79, as before stated, are coupled by links, 80, the arms 17and 17, of the feed At their upper ends the arms 79, carry the deliverygrippers. Seen in detail in Figs. 8 to 1l. Two brackets, Si, are hung onrod 79X, beside the arms 79, and these brackets are tied together by abar, 83. On this bar are xed at properintervals the xed, lower jaws, 84,of the grippers, each of which has also a movable upper jaw, 85, fixedon a rock-shaft, 82, mounted in the brackets 8l. A spring, 86, about theshaft 82, near a bracket Sl (Fig. 9), serves to close the gripperswhich, when opened, are held open by a toggle, as seen in Fig. 8. Thistoggle comprises links, 87 and 87X, pivotally connected, respectively,to a bracket 8l, and to a lever, 88, on the shaft 82. At the knuckle ofthe toggle a stud, 87a, in one link engages a slot 87h, in the other. Onthe link 87, is a cam or block, 87, at its lower edge, and thelower endof arm 88, carries a roller, 88X. When the delivery grippers nieve overtoward the cylinder 9, to seize the edge of the printed sheet, thelower, iixed jaws 84, of the delivery grippers enter between the seats56, and take under the edge of the sheet While the upper jaws 85, passabove or over the edge of the sheet. At this moment the cylinder gripperis opened by the impingement of the roller 65, on the cam, 89, on theframe, and simultaneously the cam or block 870, on the link 87,i1npingeson a cam, 90, on the machine frame which breaks the toggle upward andallows the spring 86, to instantly close the jaws of the deliverygrippers on the sheet. This position of the delivery grippersisindicated in dotted lines in Fig. 1. The delivery grippers now moveforward, carrying the printed sheet and moving with it at the same speedthat the cylinder rolls forward and frees it, thus keeping the sheetslightly strained until itis freefrom the cylinder, when it is broughtover the delivery platform 7X. The roller 88X, on the lever S8, nowrides over a cam, 91, fixed on the frame, and this has the effect torock the shaft 82, open the grippers and set the retaining toggle asrepresented in Fig. 8.

At the front margin of the platform 7X, are upright pins 7, and thedelivery gripper jaws play between these pins which serve to even thefront edges of the sheets. To prevent the sheets from dying off theplatform when being rapidly delivered, guards, 92, are employed.V Theseare mounted on the frame. In order to avoid injury to the deliverygrippers ICO IIO

c by contact with the non-rotating cylinder, in The type-bed isrepresented herein as incase the latter should be moving forwardwithclined but this is not essential to the invenout a sheet, theprinting cylinder' 9, is protion. It might be horizontal, or be inclined70 vided at one end with a buffet-plate, 93, and at a less angle than isshown.

the swinging frame which carries the deliv- Other means than the springs121 may also ery grippers has a curved cam, 94 (Figs. 8 to be used tohold the cylinder down to the type 11), which impinges on this plate 98,under in its movements. Y the conditions named and throws upthe grip- Itwill be noted that in this machine the 75 pers by causing the brackets8l, to swing on impression cylinder is normally non-rotative,

ro the rod 79X. In order to cushion the blow the only being rotatedduring a part of its forcam 94, is pivoted on the rod 83, and is heldward movement, or during theperiod of printagainst rotation about therod byaspring, 95, ing. At the point in its forward movement on theadjacent bracket 8l, which bears on a when the gripper on the cylinderreaches the 8o stud, 95, Von the cam. This spring will yield under sidethereof and opens, the rotation of 15'` if the pressure is too great.the cylinder ceases and it remains non-rotative during the remainder ofits forward The Suction-Rolle?. movement n y Undersome conditions theplain,perforated Having thus described my invention, I 8 5suction-roller 16, seen in Fig. 6, will serve, but claimzo in order thatthis roller shall work well the 1. A printing machine having a normallysheet being fed should be wide enough to non-rotativeimpressioncylinderwhich moves cover all of the perforations, 16a, in the series toand fro over the type on the type-bed, au-

- or row.f To enable the machine to print nartomatic means for unlockingthe cylinder at 9o row sheets which will not cover the end perthebeginning of its forward movement, auto- 2 5 forations of the series theconstruction of Fig. matic means for compelling the cylinder to 23 maybe employed. Within the roller 16, rotate during its forward printingmovement, is tted a tube, 16X,`which is capable of being automatic meansfor locking the cylinder afrotated axially within the roller byinserting ter the completion of its forward printing 95 a pin in one ofa series of holes, 16XX, in a movement, whereby it is prevented from ro-3o iiange on the tube. In this tube are several tating during the latterpart of its forward rows of holes either of which may be broughtmovement, and automatic means for operatto register with the row ofholes in the roller; ing the cylinder gripper'at the proper times,

but each successive row of holes in the tube as set forth. roo 16X, isabbreviated by having one less hole at 2. A printing machine having anormally its end and in consequence by moving the non-rotativeimpression cylinder, automatic inner tube far enough for the second rowof means for moving said cylinder to and fro holes therein to registerwith those in the over the type on the Atype-bed, automatic roller 16,the two end-holes in the row in the means for compelling said cylinderto rotate :o5 roller willbe closed or stopped out. Similarly, during thefirst part of its forward movement,

4o by turning the tube till the third series or automatic means forarresting the rotation of row of holes therein is brought into play, two,the cylinder before the completion of its forholes are stopped at eachend of the row in ward movement, automatic mechanism for the roller 16,and so on. The tube 16X, may operating the cylinder gripper at theproper 1 ro be rotated by inserting a pin in one of a series times,automatic mechanism for feeding the of holes 16, in a flange on thetube. sheets to the cylinder gripper, and automatic In Figs. 25, 26 and27 another form of this mechanism for delivering the printed sheets,

device is shown wherein the roller 16, has a as set forth. flange, 96,in which ismounted a hinged de- 3. In a printing machine, thecombination 115 tent, 97, and the tube 16", has a similar flange, with atype-bed, an impression cylinder, a

5o 98, having in it a series of notches, 99, to re- Aframe in which saidcylinder is carried, autoceive the detent 97, and thus lock the tubematic means for moving said frame and cylina'nd roller together in anyposition set. These der over the type on the type-bed, automatic notchesare so placed that when the tube and means for compelling said cylinderto rotate izo roller are locked together, some one of the during thefirst part of its forward movement series of holes in the tube willregister with and automatic means for locking said cylinder the seriesof holes in the roller. against rotation during the remainder of its Theimpression may be regulated in any forward movement, of a sheet-guardcon-` manner desired. In Fig. 24, I have shown nected to and moving'withthe frame carry- [z5 means for raising and lowering the tracks on ingthe cylinder, whereby the sheetis kept out 6o which the cylinder wheelsroll and this serves of contact with the'type while it is being toregulate the impression. The track has an placed, and a feeder whichsupplies sheets inclined lower surface which matches an into thecylinder, as set forth. cline on the bed 8a, and a screw, 100, serves 4.In a printing machine, the combination 13o to`move the track endwise foradjustment. with the type-bed, the vibrating frame which The cams on themachine will have such a carries the impression cylinder to and fro formand be so set as `to properly eect and over the type-bed, and the saidimpression time the movements of the parts. cylinder, of the automaticlocking and unlocking mechanism, and the rack and pinion, which controlthe rotation of the cylinder, a gripper on the cylinder for seizing thesheets, and a controller, carried by the said cylinder which preventstheunlocking of the cylinder when no sheet is seized, substantially asset forth.

5. In a printing machine, the combination with an impression cylinderhaving a gripper, of a feeder to feed the sheets to said gripper,comprising a vibrating suction-roller, its air-exhauster, a vibratingsegregating blade moving in unison with the roller and adapted to takeunder the top sheet when the latter is lifted by the roller, mechanismfor operating said roller, air-exhausterand blade, and means fordepressing said blade when in its advanced position, substantially asand for the purposes set forth.

6. In a printing-machine, the combination with the stationary type-bed,the vibrating impression cylinder provided with a gripper, and the frameabout said cylinder, of a ieXible sheetguard connected to said frame atone end and a take-up for taking up said sheetgnard when the cylindermakes its forward, printing movement, substantially as set forth.

7. In a printing machine, the combinationk with the type-bed, the rack8b, the rotatable impression cylinder, its frame, and its wheels, ofmeans for moving said cylinder to and fro, a lock, substantially asdescribed which locks the cylinder to its frame when its parts are inone position, and locks the cylinder to its wheels when its parts are intheir other position, and means on the machine frame for operating saidlock automatically, as set forth.

8. In a printing machine, the combination4 with a vibrating andintermittently rotating` impression cylinder, provided with a gripper,and means for operating said cylinder and gripper, of a vibratingdelivery-gripper for the printed sheets, said delivery-grippercomprising the iixed jaws 84, the rock-shaft 82, the

movable jaws 85, fixed on said shaft, the

spring 86, for closing the jaws of the gripper, the lever 88, on theshaft 82, the bracket 81, and the toggle connecting one arm of said le-'ver 88 with the bracket, and means for operatingl saiddelivery-gripper, substantially as set forth. l

9. In a printing machine, the combination with the typebed, therackthereon, the tracks on which lthe impression cylinder rolls, thesaid cylinder, its wheels, the frame which carries the cylinder, andmeans for moving the cylinder to and fro overl the type-bed, of thedouble-acting lock which locks the cylinder to its frame when its partsarein one position and to its wheels when its parts are in their otherposition, said lock comprising the diametrically arranged bolt 30, onthe cylinder, said bolt having a tip 3l at one end to engage a socket 32in the frame and a stud 33 at the other end to lock the cylinder to itswheels, the toggle for operating the bolt, coupled at one end to thebolt and at the other end to the cylinder, and the spring 34C, arrangedto shoot the bolt when freed by the breaking of the toggle knuckle, andautomatic means for operating said lock, substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

Y GEORGE R. CLARKE. lVitnesses:

HENRY CONNETT, JAS. KING DUFFY.

